Add Leaderboard video-generation first-frame assets (batch 265/303)

.gitattributes

@@ -23778,3 +23778,76 @@ Leaderboard/Video[[:space:]]Generation/TriplePhysics/ObliqueProjectile_RollUpSlo
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Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__C4cImW_trajectory/caption.txt

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+An orange plastic sphere is projected obliquely, traversing a curved projectile trajectory under constant gravitational force. The sphere impacts an inclined plane, transitioning from free flight to constrained sliding along the slope. During descent, stored gravitational potential energy continuously converts into kinetic energy. Upon reaching the bottom, the sphere collides with an actuated crank mechanism comprising orange plastic wheels and brown arms. This apparatus applies a continuous horizontal force to the rolling object, driving subsequent rectilinear motion in space.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__FQNw5l_trajectory/caption.txt

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+The orange ball departs the horizontal plane with oblique velocity, undergoing projectile motion under gravity to acquire downward acceleration. Following impact with the inclined plane, the motion transitions from free flight to constrained sliding along the slope. During descent, gravitational potential energy converts into kinetic energy. At the lowest point, the ball contacts an active crank mechanism equipped with a white wheel and an orange plastic arm. The mechanism applies a horizontal force to the ball, altering its trajectory through direct mechanical interaction. Maintaining continuity without interruption, the process adheres to momentum transfer and energy conservation, completing the transition from aerial flight to ground-driven propulsion.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__GwuIXo_trajectory/caption.txt

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+A yellow low-density plastic sphere is projected with an oblique velocity, moving along a projectile trajectory under gravity. During descent, gravitational potential energy converts to kinetic energy, and motion transitions to constrained sliding. Upon reaching the apparatus, the sphere interacts with an active crank fitted with a salmon-colored wheel and a cyan arm. The device applies a horizontal force, causing the sphere to deflect its trajectory. This sequence adheres to the laws of projectile dynamics, energy conversion, and interaction with the rotating crank assembly.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__IML3f3_trajectory/caption.txt

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+A yellow sphere is projected with an oblique velocity, ascending and advancing under constant downward gravitational acceleration. Tracing its parabolic trajectory, the sphere impacts a steep inclined plane, transitioning from free flight to constrained sliding. During the descent, gravitational potential energy converts to kinetic energy. At the ramp's base, the sphere collides with an active crank equipped with red plastic wheels and green arms. This component exerts a horizontal force upon impact, driving the sphere forward along the lower ground surface.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__IxJSyJ_trajectory/caption.txt

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+A blue sphere commences motion with an oblique initial velocity, tracing a projectile trajectory upward and forward under constant downward acceleration. Upon concluding free-flight following collision, the sphere slides along a descending path, where potential energy is converted into kinetic energy. At the base, the sphere contacts an active crank mechanism configured with white rough matte wheels and silver arms. This mechanism applies a horizontal force to the sphere.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__Ki00Gx_trajectory/caption.txt

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+A blue sphere is projected with an oblique initial velocity, moving along a projectile trajectory under constant downward acceleration. After ascending and advancing, it collides with an inclined plane, transitioning from free flight to constrained sliding. During descent, gravitational potential energy converts to kinetic energy. Upon reaching the bottom, the sphere contacts a crank mechanism comprising light-colored wheels and light-blue pleated arms, which exerts a horizontal force. The trajectory demonstrates oblique projectile dynamics and conservation of mechanical energy, encompassing the descent and collision process with the rotating apparatus.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__UpVnZM_trajectory/caption.txt

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+An orange plastic sphere initiates motion with an oblique initial velocity, ascending along a projectile trajectory under constant downward acceleration. It transitions from free-flight motion to constrained sliding along an inclined plane, where gravitational potential energy converts to kinetic energy. Upon completing the descent, the sphere contacts a crank mechanism comprising a reflective wheel and a copper arm. The mechanism applies a horizontal force to the sphere, altering its motion during the interaction.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__VuNSHJ_trajectory/caption.txt

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+A blue plastic sphere is launched with an initial oblique velocity, traversing a projectile trajectory under constant downward gravitational acceleration. Upon striking an inclined plane, the sphere descends, transitioning from free-flight motion to constrained sliding. Throughout this phase, gravitational potential energy converts into kinetic energy. At a reduced elevation, the sphere contacts an active crank assembly fitted with a green plastic wheel and a red weathered arm. During impact, the mechanism exerts a horizontal force, propelling the sphere forward. Conservation laws govern the dynamics and interactions between the rolling sphere and the crank.

Leaderboard/Video Generation/TriplePhysics/ObliqueProjectile_RollUpSlope_CrankPush__bg261__eqag8S_trajectory/caption.txt

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+A gray plastic sphere is projected with an initial oblique velocity, traversing a projectile trajectory under downward gravitational acceleration. Post-impact, the motion transitions to constrained sliding. During descent, gravitational potential energy converts to kinetic energy. Subsequently, the sphere contacts a crank mechanism equipped with red wheels and salmon-colored arms, exerting a horizontal force to sustain continued motion.